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Device and method for realizing partial short-range nitrification-anaerobic ammonia oxidation by adding hydroxylamine
ActiveCN106865773AAddress serious problemsNo swellingTreatment with aerobic and anaerobic processesHydroxylamineAmmonia-oxidizing bacteria
The invention discloses a device and a method for realizing partial short-range nitrification-anaerobic ammonia oxidation by adding hydroxylamine, and belongs to the field of urban domestic sewage biological treatment. For two-stage partial short-range nitrification-anaerobic ammonia oxidation, the stable operation of the short-range nitrification is crucial to a process; the short-range nitrification is very difficult to start and maintain stably only through process parameter control; a very good nitrite accumulating effect can be achieved by adding the hydroxylamine in the patent; partial short-range nitrification reactors can be started and high nitrite accumulation can be maintained within a short time. The hydroxylamine serves as an intermediate product in a nitrifying process, is a reducing agent of ammonia monooxygenase and a stimulating agent of AOB (Ammonia Oxidizing Bacteria) and can improve the cell yield of the AOB; meanwhile, the hydroxylamine is an inhibiting agent of NOB (Nitrite Oxidizing Bacteria) and can elutriate the NOB. Compared with a conventional denitrogenation process, a partial short-range nitrification-anaerobic ammonia oxidation process can save aeration quantity and carbon source, and is particularly suitable for urban domestic sewage with low C / N.
Owner:BEIJING UNIV OF TECH
Aluminum-plated steel sheet for hot pressing with rapid heating, process for producing same, and method of hot-pressing same with rapid heating
ActiveCN102089451AIncrease production capacityPrevent saggingHot-dipping/immersion processesBell type furnacesHydrogenSheet steel
Owner:NIPPON STEEL CORP
Processing method of coking steaming ammonia wastewater
ActiveCN103130379AEasy to useEasy to recycleMultistage water/sewage treatmentElectrolysisPersistent organic pollutant
The invention discloses a processing method of coking steaming ammonia wastewater. The processing method of the coking steaming ammonia wastewater comprises pretreatment of coking steaming ammonia wastewater and biochemical treatment of the coking ammonia wastewater. The pretreatment of the coking steaming ammonia wastewater uses an adjusting pool, an internal electrolysis reactor, a Fenton oxidation pond and a coagulative precipitation tank. A sequencing batch membrane bioreactor technology is adopted by the biochemical treatment, and working procedures of inflow, unused-leaving, reacting and discharging are sequentially performed according to a time period. The processing method of the coking steaming ammonia wastewater can effectively remove persistent organic pollutants and ammonia nitrogen, strengthen effluent quality, and reduce operational and investing costs of equipment.
Owner:ANGANG STEEL CO LTD
Adjusting method for A/O biological denitrification reactor and nitrification process, its on-line fuzzy controller and control thereof
InactiveCN1778714ASave dosing costOrganic load reductionControlling ratio of multiple fluid flowsChemical variable controlSludgeMarine engineering
Owner:姚宏
Real-time controlling method for denitrification by reinforced circulating type active sludge process
ActiveCN101182074AAvoid wastingControlled Aerobic AerationTreatment with aerobic and anaerobic processesElectric programme controlReal-time Control SystemSludge bulking
The invention discloses a real-time control method for denitrification by an enhanced circulating activated sludge method, which belongs to the field of biological denitrification of sewage and is suitable for advanced treatment of urban sewage. The effect of circulating activated sludge method on nitrogen and phosphorus removal is not ideal. The steps of the present invention: open the agitator in the main reaction zone at the same time as entering the water, and carry out the denitrification process under the anoxic condition, and stop stirring when a maximum value appears on the pH value curve and an inflection point appears on the ORP curve; Oxygen is supplied to the mixed solution to degrade organic matter and nitrify nitrogenous compounds, and stop aeration when a minimum value appears on the pH curve; repeat the above steps until the end of the water inflow stage, and react with the aerobic aeration stage end of period. The following process is similar to the traditional CAST method. It enters the sedimentation, drainage, and idle stages in turn, repeating all steps in turn and discharging sludge regularly. The whole process is completed by a real-time control system, which is easy to operate, low in cost, strong in impact load resistance, and not prone to sludge bulking.
Owner:CHONGQING KANGDA ENVIRONMENTAL PROTECTION IND GRP
A/O denitrification sewage treatment process and device capable of realizing sludge reduction
InactiveCN101544423AAchieve reductionAchieve the effect of reducingTreatment with aerobic and anaerobic processesSludgeWater quality
The invention relates to an A / O denitrification sewage treatment process and a device capable of realizing sludge reduction. The process comprises the following steps: leading sewage in an anoxic zone to realize denitrification and then leading the treated sewage in an aeration zone to carry out aeration treatment; pumping part aerated sewage to the upper part of the anoxic zone to realize refluxing of mixed solution; leading residual sewage in a deposition zone to realize sludge-water separation through natural deposition; and pumping part deposited sludge to a sludge detention tank according to sludge refluxing ratio and then pumping the part deposited sludge to the upper part of the anoxic zone after 5.0 to 8.0 hours of detention to realize sludge refluxing. The A / O denitrification sewage treatment process and the device have the advantages that the process effectively combines sewage denitrification treatment and sludge reduction and has the advantages of both A / O denitrification process and OSA process, thereby realizing sludge reduction while ensuring effluent water quality; meanwhile, the process has simple flow and reduces material consumption and energy consumption; moreover, the process saves investment and does not cause potential problems in environmental safety; and the device has low investment and operation cost and convenient operation management.
Owner:CHONGQING UNIV
Method for fast realizing short distance deep denitrogenation by SBR process
ActiveCN101264978AImprove denitrification effectReduce total nitrogenTreatment with aerobic and anaerobic processesSustainable biological treatmentSludgeRetention time
The invention relates to a rapid nitrogenous wastewater biological treatment process, particularly to a method for rapidly realizing short distance deep denitrogenation by SBR process. The prior short distance biological denitrogenation technique is not suitable for treating wastewater with low C / N ratio. The inventive method comprises the steps of feeding water, aerating, adding equal amount of raw wastewater, aerating, adding equal amount of raw wastewater, aerating, adding external carbon source, aerating, settling, draining, and idle running. The temperature in the overall process is controlled at 30-33 DEG C, the water dissolved oxygen concentration during nitration stage is controlled in the range of 0.8-1.2 mg / L, the mean sludge retention time in the system is 12-15 days, and the aeration amount and the denitrification time of the short distance deep denitrogenation by SBR process is controlled based on the change feature of online parameter pH value. The inventive method has the advantages of good denitrogenation effect, high degree of automation, low energy consumption, convenient operation, low cost, and suitability for treatment of wastewater with low C / N ratio.
Owner:QINGDAO CHENGTOU SHUANGYUAN WATER CO LTD
Grease used for metal fastener
InactiveCN101805656AImprove adhesionImprove antioxidant capacityAdditivesPreservativeFilm-forming agent
The invention discloses grease used for a metal fastener, which is prepared from the following components in percentage by weight ( in percentage by total weight of the grease): 50.0 to 90.0 percent of basic grease, 1.5 to 20.0 percent of film-forming agent, 0.1 to 1.0 percent of anti-oxidation preservative, 5.1 to 8.3 percent of anti-rust agent and 2.5 to 26.0 percent of solid stuffing. The grease has higher oxidation resistance, higher corrosion and rust resistance, better water resistance, more excellent sealing property, better pressure resistance, better adhesivity, more environment-friendly suitability, convenient brushing and injection and stable structure and is not easy to generate swelling action on protected nonmetal assorted components. The grease can be largely applied to thespeed acceleration of the trunk line of the railway ballastless track.
Owner:成都蜀光石油化学有限公司
Method for realizing short distance deep denitrogenation under low temperature
ActiveCN101264979AGood denitrification effectGood effect of energy saving and consumption reductionTreatment with aerobic and anaerobic processesEngineeringNitrogen
The invention relates to a method for realizing nitrogenous wastewater biological treatment process, particularly to a method for realizing short distance deep denitrogenation. The inventive method includes a short distance deep denitrogenation starting-up stage, a stabilizing stage and a cooling stage; and comprises the steps of feeding water, aerating, denitrifying, settling, draining, sludge discharging, and idle running. In the short distance deep denitrogenation starting-up stage, the system temperature is 25 DEG C, the mean sludge retention time is 15 days, and the number of operating periods is 90-95; in the stabilizing stage, the system temperature is 25 DEG C, the sludge retention time is 15 days, and the number of operating periods is 60-65; and in the cooling stage, the system temperature is adjusted to 18 DEG C, the sludge retention time is 15 days, and after 30-35 operating periods, the temperature is adjusted to 11 DEG C, and the sludge retention time is 20 days. The inventive method has the advantages of good denitrogenation effect, high degree of automation, low energy consumption, and capability of stable operation under low temperature conditions.
Owner:JIANGSU YULONG ENVIRONMENTAL PROTECTION
Positive electrode material, method of production therefor, positive electrode for nonaqueous rechargeable battery, and nonaqueous rechargeable battery
InactiveCN102770991ANot prone to swellingReduce capacityFinal product manufactureSecondary cellsNickel compoundsMaterials science
Disclosed are: a positive electrode material that can constitute a composition containing a positive electrode mixture having minimal deterioration over time and which can be produced with excellent productivity; a method for production therefor; a nonaqueous rechargeable battery with excellent storage properties and which is resistant to swelling when stored under high temperatures; and an electrode that can be used to constitute said battery. The positive electrode material is provided by forming a coating layer made from an organic silane compound on the surface of a positive electrode active substance made from a lithium nickel compound oxide represented by the general composition formula Li1 + xMO2 [where -0.5 <= x <= 0.5, and M represents a group of at least two elements containing Ni and at least one element selected from Mn and Co, and with the percentages (mol%) of Ni, Mn and Co, which constitute M, set to a, b and c respectively, being 20 <= a <(100, 50 <= a + b + c <= 100], wherein the titer when titering the supernatant liquor obtained by mixing and stirring 20 g of said oxide with 100 ml of distilled water in a nitrogen atmosphere for 1 hour, with 0.2 mol / L of hydrochloric acid, is 0.5 to 150 ml.
Owner:HITACHI MAXELL ENERGY LTD
Silicon-carbon composite material, preparation method thereof, negative electrode, power battery and electric automobile
InactiveCN110148732AImprove conductivityIncrease capacityMaterial nanotechnologyCharging stationsCarbon compositesMicrosphere
The invention provides a silicon-carbon composite material, a preparation method thereof, a negative electrode, a power battery and an electric automobile. The silicon-carbon composite material comprises a housing layer, core-shell microspheres and a second nano-carbon material, wherein the material of the housing layer includes a first nano-carbon material, and an accommodating space is defined inside the housing layer; each core-shell structure microsphere is located in the accommodating space and provided with a core and a shell layer, the shell layer coats the core, the core includes nano-silicon particles, and the shell layer includes amorphous carbon; and the second nano-carbon material is linear, one part of the second nano-carbon material is located in the accommodating space, andthe other part of the second nano-carbon material is arranged in the first nano-carbon material in a penetrating manner. The silicon-carbon composite material can be used as a negative electrode material of the power battery, has the advantages of good conductivity, high capacity, good rate performance, and is not easy to expand or be powdered, high in stability and good in cycle performance.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD
System and method suitable for treating high concentration organic wastewater
InactiveCN105174622AEfficient killingImprove purification intensityMultistage water/sewage treatmentHigh concentrationFlame arrester
The invention relates to the technical field of sewage treatment and discloses a system suitable for treating high concentration organic wastewater. The system comprises a feed hopper (1), a homogenizing tank (2), a biogas tank (3), an up-flow anaerobic sludge bed (4), a cyclic activated sludge bioreactor (5), a microelectrolysis reactor (10), a baffled biological aerated filter (BBAF) (6) and an ozone disinfection tank (7), which are connected in sequence, wherein the biogas tank is connected with a sludge thickening tank (8); a biogas purification and storage gas supply system comprises a gas-water separator (91), a biogas desulfurizer (92), a first flame arrester (931) and a gas storage tank (94) in sequence; and the gas-water separator (91) is also connected with a gas supercharging device (95), a second flame arrester (932) and a waste heat recovery device (96). The system and the method have the beneficial effects that the process is simple; the concentration gradient in the reaction process is large, so that sludge bulking is not easy to happen; the system has strong load impact resistance and good treatment effects; and the simultaneous denitrification and dephosphorization effects of the BBAF are obvious by adjusting the cycle of operation and controlling the working procedure time length.
Owner:HANGZHOU DINGLONG ENVIRONMENTAL PROTECTION SCI & TECH
System and method for treating wastewater by applying activated sludge
InactiveCN105174621AImprove purification intensitySimple processWaste based fuelTreatment with anaerobic digestion processesBiogasAnaerobic digestion
The invention relates to the technical field of sewage treatment and discloses a system for treating wastewater by applying activated sludge. The system comprises a feed hopper (1), a homogenizing tank (2), a biogas tank (3), an up-flow anaerobic sludge bed (4), an activated sludge reaction tank (5), a microelectrolysis reactor (10), a baffled biological aerated filter (BBAF) (6) and an ozone disinfection tank (7), which are connected in sequence, wherein the biogas tank is connected with a sludge thickening tank (8). The invention also discloses a method for treating wastewater by applying activated sludge. The method comprises anaerobic digestion treatment, treatment by adopting an activated sludge method, microelectrolysis reaction, biochemical treatment with the BBAF and ozone disinfection. The system and the method have the beneficial effects that the process is simple; the concentration gradient in the reaction process is large, so that sludge bulking is not easy to happen; the system has strong load impact resistance and good treatment effects; and the simultaneous denitrification and dephosphorization effects of the BBAF are obvious by adjusting the cycle of operation and controlling the working procedure time length.
Owner:HANGZHOU DINGLONG ENVIRONMENTAL PROTECTION SCI & TECH
Treatment system coupling iron-promoted magnetic loading anaerobic/anoxic activated sludge process and biofilm process
PendingCN110606627AEnhance denitrification functionIncrease concentrationWater treatment parameter controlSpecific water treatment objectivesProcess integrationNitrogen
The invention discloses a treatment system coupling an iron-promoted magnetic loading anaerobic / anoxic activated sludge process and a biofilm process coupled treatment system, and relates to the technical field of sewage treatment. The system includes an anaerobic tank, an anoxic tank, a sedimentation tank, a biological membrane tank and a post-treatment system which are sequentially connected, wherein the anaerobic tank is connected with a composite iron-based promoter feeding system, and the sedimentation tank is also connected with a magnetic seed separation system. Compared with a conventional nitrogen and phosphorus removal process, the treatment system has the beneficial effects that the concentration of activated sludge of the treatment system can be greatly increased, the biological nitrogen and phosphorus removal effect can be enhanced; meanwhile, the risk of sludge bulking is reduced; the treatment system has the advantages of high process integration degree, good effect, reliable operation, convenient management, high load, small occupied area and the like.
Owner:QINGDAO SPRING WATER TREATMENT
Step-feed CAST nitrite denitrifying phosphorus removal method and process control device thereof
InactiveCN104743669ALow costReduce energy consumptionTreatment with aerobic and anaerobic processesCarbon sourceSewage
The invention discloses a step-feed CAST nitrite denitrifying phosphorus removal method and a process control device thereof and belongs to the technical field of SBR and modified process sewage biologic denitrification thereof. The device comprises a selector, a main reaction area, a water inlet pump, a stirrer, a submersible mixer, a return sludge pump, an aerator, an air compressor, a water decanter, a drain valve, a mud valve and a real-time control system. By adopting integration of a multiple-water inlet running mode and a real-time control system, an organic carbon source in the original sewage is furthest utilized and furthermore, the ammoxidation, denitrifying dephosphatation and phosphorus release time in each stage is scientifically and reasonably distributed. The anaerobic stirring time is increased and operation based on a variable-duration anoxic / aerobic mode is adopted, the anoxic phosphorus uptake effect of the selector in the aerobiotic time and the anoxic phosphorus uptake effect of the main reaction area in the anoxic time are reinforced, and the anaerobic stirring time and the aerobic aerating time are controlled by a real-time process control strategy.
Owner:LANZHOU JIAOTONG UNIV
Dyeing and finishing wastewater treatment system and technology
PendingCN107117778AImprove biodegradabilityIncrease processing depthWater treatment parameter controlSpecific water treatment objectivesProcess engineeringWater use
The invention discloses a dyeing and finishing wastewater treatment system which comprises a first-level treatment unit, a first-level precipitation unit, at least one set of second-level treatment unit and a second-level precipitation unit, wherein the second-level treatment unit is connected with a corresponding second-level precipitation unit; the first-level treatment unit comprises a grid pool and a wastewater regulating pool; the first-level precipitation unit comprises a coagulative precipitation tank; the second-level treatment unit comprises a hydrolytic acidification cell, a first aerobic contact oxidation cell, a second aerobic contact oxidation cell and a reaction buffering pool which are connected in sequence; the second-level precipitation unit comprises a second-level precipitation pool and a reverse multi-element filtering pool; and the reverse multi-element filtering pool is connected with a clean water pool. The invention also discloses a wastewater treatment technology adopting the dyeing and finishing wastewater treatment system. According to the dyeing and finishing wastewater treatment system and technology disclosed by the invention, the textile wastewater can be deeply treated, the wastewater can reach the standard of recycled water, multiple effects of reducing wastewater discharge, saving water resources and protecting environment can be achieved, and the dyeing and finishing wastewater treatment system can meet the market requirement of the textile dyeing and finishing industry.
Owner:福建省万德环境工程有限公司
Anaerobic-aerobic stabilization process for high concentration organic wastewater
ActiveCN103663694AImprove processing efficiencyEasy to handleTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentHigh concentrationElectrolysis
The invention provides an anaerobic-aerobic stabilization process for high concentration organic wastewater. The process is as below: (1) wastewater is subjected to pretreatment and iron carbon micro electrolysis according to the quality and sent into a UASB anaerobic reactor for anaerobic digestion reaction; (2) UASB effluent is sent into a facultative sedimentation basin, which has the functions of an anaerobic tank; (3) liquid supernatant from the facultative sedimentation basin is sent into an SBAR aerobic reactor, wherein the sludge in the reactor is domesticated mature aerobic granular sludge, and air is introduced from the bottom of the aerobic reactor for air aeration treatment; (4) the sewage is subjected to sedimentation treatment in the aerobic reactor, and after sedimentation treatment the water flows out from a water outlet; (5) a reflux system can be set in the SBAR aerobic reactor according to quality of the outlet water, and part of the sludge in the SBAR aerobic reactor can be returned to the UASB anaerobic reactor; and (6) a reflux system can be set in the SBAR aerobic reactor according to quality of outlet mixed liquid, and part of the mixed liquid can be returned to the facultative sedimentation basin. Especially, wastewater indexes are as below: UASB inlet water preferably has COD at 1500-5000 mg / L, suspended solids less than 1500 mg / L, sulfate less than 1000 mg / L and ammonia nitrogen less than 2000 mg / L, and SBAR inlet water has COD concentration reaching 1000-1500 mg / L, ammonia nitrogen concentration less than 1500 mg / L and BOD / COD greater than 0.3.
Owner:CEEP CO LTD
CAST sectional water inlet synchronous denitrification and dephosphorization strenghthening procedure control device and method
ActiveCN101434438ALow costReduce energy consumptionTreatment with aerobic and anaerobic processesReal-time Control SystemSludge
The invention relates to a control device and a method of a CAST segmental inflow and synchronous denitrification and dephosphorization reinforcement process, which belongs to the technical field of SBR and variant process spent water biological denitrification. The denitrification and dephosphorization effect of the currently used CAST technique is not desirable. The device comprises a selector, a main reaction zone, an inlet pump, a stirrer, a diving stirrer, a return sludge pump, an aerator, an air compressor, a decant machine, a drain valve, a mud valve, a real-time controlling system and a sensor. The real-time controlling system is used for controlling a time-delay device which is connected with the inlet pump, the stirrer, the diving stirrer, the return sludge pump, the air compressor, the decant machine, the drain valve and the mud valve, a computer, and a data collecting card connected on the computer. By the processes of inflow anoxia stirring, inflow anaerobism stirring, aeration, sedimentation, drainage and leaving unused, the synchronous denitrification and dephosphorization is realized. The device and the method have the advantages of good denitrification and dephosphorization effect, low operation cost, and being capable of realizing intelligent control, and the like.
Owner:JIANGSU YULONG ENVIRONMENTAL PROTECTION
High-efficiency biological strengthened treatment process for waste water generated in paper making
InactiveCN101955306AReduce the chance of sludge bulkingRun smoothlyTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentActivated carbonPre treatment
The invention provides a method of feeding powdered activated carbon in the specific position for solving the problems occurring in the biochemical treatment process of waste water generated in paper making; and simultaneously, an anoxic pool is arranged for removing nitrates in the water, controlling TN in the discharged water and reducing the sludge bulking probability. The pretreated waste water generated in paper making automatically flows into or is lifted by a water pump to enter an anoxic zone of a high-efficiency biological strengthened treatment pool; the waste water treated in the anoxic zone automatically flows into an aerobic zone; the waste water treated in the aerobic zone automatically flows into a settling zone; and the water treated in the settling zone automatically flows into or is lifted by the water pump to enter subsequent treatment units or is discharged. The reactor enables the biochemical treatment unit of the waste water generated in paper making to have the advantages of stable operation, better quality of the discharged water, reduced operation cost and the like.
Owner:JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
Miniature no-decanter SBR integrated sewage processing system
InactiveCN106904742AShort processSmall footprintBiological treatment apparatusTreatment with aerobic and anaerobic processesSmall footprintEngineering
The invention discloses a miniature no-decanter SBR integrated sewage processing system. The miniature no-decanter SBR integrated sewage processing system comprises a control apparatus, an equalizing tank, a device room, a SBR reaction tank and a clean water tank; a sewage elevator pump and an aeration apparatus are arranged in the device chamber, an inlet of the sewage elevator pump is communicated with the bottom of the equalizing tank, the outlet of the sewage elevator pump is communicated with the upper part of the SBR reaction tank; the aeration apparatus is communicated with the SBR reaction tank; a center water distributor is arranged in the SBR reaction tank, the center water distributor and the water outlet of the elevator pump are communicated; an downcast pipe is arranged between the equalizing tank and the SBR reaction tank, a downcast electrically operated valve is arranged on the downcast pipe; the control apparatus is used for controlling the sewage elevator pump, the aeration apparatus and the downcast electrically operated valve. The sewage is sent to the bottom of the SBR reaction tank by the center water distributor, at the same time, the water at the upper part of the SBR reaction tank is discharged to a clean water tank, so that SBR sewage treatment of a no-decanter is realized. An integrated design of the equalizing tank, the device chamber, the SBR reaction tank and the clean water tank is employed, so that the process flow is shortened, land occupation area is small, and the construction cost is low.
Owner:尚川(北京)水务有限公司
Treatment system and method of high-concentration ammonia nitrogen organic wastewater
InactiveCN105110571AEfficient killingImprove purification intensityWater contaminantsMultistage water/sewage treatmentHigh concentrationElectrolysis
The invention relates to the technical field of wastewater treatment and discloses a treatment system of high-concentration ammonia nitrogen organic wastewater. The system comprises a feed hopper (1), a homogenating tank (2), a methane tank (3), an upstream type anaerobic sludge bed reactor (4), a biological contact oxidation pond (5), a secondary sedimentation tank (11), a micro electrolytic reactor (10), a circular aeration biological filter (6) and an ozone disinfection tank (7), and the methane tank is connected with a sludge thickener (8). The invention further discloses a treatment method of the high-concentration ammonia nitrogen organic wastewater. The treatment method comprises anaerobic digestion treatment, activated sludge treatment, micro-electrolysis reaction, circular aeration biological filter biochemical treatment and ozone disinfection. The process is simple, the reaction process concentration gradient is large, and sludge is not prone to bulking; the capability to resist impact load is high, and the treatment effect is good; all working procedure time is controlled by adjusting the operation period, and at the same time, denitrification and phosphorus removal effects are remarkable.
Owner:徐雪祥
Method for testing sealing property of battery, and method for testing quality of battery
ActiveCN110057506ADoes not affect cycle performanceIncrease vacuumDetection of fluid at leakage pointEngineeringCharge and discharge
Owner:SVOLT ENERGY TECHNOLOGY CO LTD
Granular sludge-containing microbial fuel cell device
InactiveCN109336255ATo achieve comprehensive and rational utilization of resourcesHigh organic loadTreatment by combined electrochemical biological processesWater contaminantsHigh concentrationSludge
The invention discloses a granular sludge-containing microbial fuel cell device. The granular sludge-containing microbial fuel cell device comprises an anode chamber, a cathode chamber and a precipitation chamber, wherein holes are formed in the side wall of the anode chamber; the outer part of the side wall of the anode chamber is wrapped with an ion exchange membrane; the cathode chamber surrounds the anode chamber; a liquid outlet for discharging water into the precipitation chamber is formed in the top of the cathode chamber; a liquid distributor and anaerobic granular sludge are arrangedinside the anode chamber; and aerobic granular sludge is arranged inside the cathode chamber. The granular sludge-containing microbial fuel cell device not only can perform sewage treatment, but alsocan generate electricity through the action of microorganisms with wastewater as an energy source, so that comprehensive and reasonable resource utilization is achieved. The granular sludge-containingmicrobial fuel cell device adopts a simple and easily implemented operating method, is small in land occupation and low in investment, achieves continuous operation, can treat high-concentration organic wastewater, has very high pollutant removing efficiency, and has a broad engineering application prospect.
Owner:JIANGSU UNIV OF SCI & TECH
Buried sewage processing equipment
PendingCN110981114AAvoid churnImprove growing conditionsWater treatment parameter controlWater contaminantsSewageSewage treatment
The invention discloses buried sewage processing equipment, which mainly comprises a control box, an equipment room, an anaerobic tank, an anoxic tank, an aerobic tank, and an ultrafiltration membranetank; all operation rooms are communicated with each other; the bottom end of the equipment is provided with a water inlet; and the top end of the equipment is provided with a water outlet. Sewage isintroduced into the equipment from the bottom end, sequentially goes through the anaerobic tank, the anoxic tank, and the aerobic tank, and finally is discharged from the water outlet after going through the ultrafiltration membrane tank. The energy consumption of the equipment is largely reduced; due to a novel ultrafiltration membrane, the occupied area is largely reduced, the sewage processingeffect is good, and the gas utilization rate is high. Sewage is decomposed in each operation room, and the effluent reaches the discharge standards.
Owner:TIANJIN MOTIMO MEMBRANE TECH
Asphalt concrete for road construction and preparation method thereof
The invention provides an asphalt concrete for road construction and a preparation method thereof. The preparation method includes: adding asphalt, modified lignin fiber, carbon fiber and an organosilicon high-boiling matter into a reaction kettle, then adding aggregate, raising the temperature and mixing the substances evenly, thus obtaining the asphalt concrete for road construction.
Owner:张莹莹
Activated sludge multiplication method
InactiveCN110980949AImprove biological activityNot prone to swellingWater contaminantsTreatment with aerobic and anaerobic processesActivated sludgeProcess engineering
The invention discloses an activated sludge multiplication method which comprises the following steps: culturing granular sludge, screening the granular sludge and refluxing underflow granular sludge.The method has the beneficial effects that the screened granular sludge is refluxed, and the amount of sludge needing to be treated subsequently is reduced; the functions of simultaneously degradingorganic matters and removing nitrogen and phosphorus are realized, and the effluent quality is integrally improved; transformation is conducted on an existing pipeline, and the transformation cost isreduced; and the mode is simple and easy to operate, and the energy consumption and operation cost are reduced.
Owner:上海亿维工程技术有限公司
Biochemical treatment method of refinery wastewater
ActiveCN110040849AImprove degradabilityImprove the effectWater contaminantsTreatment with aerobic and anaerobic processesAnaerobic treatmentOil content
The invention provides a biochemical treatment method of refinery wastewater. A UASB (upflow anaerobic sludge blanket) anaerobic reactor and an SBR (sequencing batch reactor) aerobic reactor which areconnected in series are arranged, and cultured and acclimated anaerobic granular sludge and aerobic granular sludge are arranged in the UASB anaerobic reactor and the SBR aerobic reactor respectively. The treatment method comprises following processes: a UASB and an SBR operate, to-be-treated refinery wastewater is introduced into the UASB and subjected to anaerobic treatment, and after the wastewater subjected to the anaerobic treatment is discharged, the wastewater is introduced into the SBR and subjected to aerobic treatment, wherein oil content of the to-be-treated refinery wastewater isnot higher than 300 mg / L, COD of the wastewater entering the SBR is 200-600 mg / L, and pH is 6.5-7.5. With the adoption of the treatment method, sludge loss can be avoided, the area occupied by the reactor is saved, the infrastructure investment cost is reduced, and the index of the treated wastewater can meet the related industry standard.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Sewage treatment method by adding traditional Chinese medicine treatment agents
InactiveCN103833176AAdaptableNot easy to sludge bulkingMultistage water/sewage treatmentActivated sludge systemSewage
The invention belongs to the technical field of environmental protection, and in particular relates to a sewage treatment method by adding traditional Chinese medicine treatment agents. The method comprises the following steps: inputting sewage into a mechanical grid; leading the sewage passing through the mechanical grid to enter a water collection and regulating tank; inputting the sewage in the water collection and regulating tank into a sewage cooling tower; inputting the sewage cooled by the cooling tower into a coagulating sedimentation tank; leading the sewage treated by coagulating sedimentation to enter a CASS (cyclic activated sludge system) tank; leading the sewage treated in the CASS tank to flow through a biofilter tank to obtain the treated water. The method has the advantages that the traditional Chinese medicine treatment agents are added into the CASS tank, and harmful substances cannot be generated in the whole process because the traditional Chinese medicine treatment agents are pure natural substances.
Owner:李建国
Environment-friendly sewage treatment method
InactiveCN103833178ANot prone to swellingStrong shock load adaptabilityMultistage water/sewage treatmentHazardous substanceEngineering
The invention belongs to the technical field of environmental protection, and in particular relates to an environment-friendly sewage treatment method. The method comprises the following steps: inputting sewage into a water collection and regulating tank; inputting the sewage in the water collection and regulating tank into a coagulating sedimentation tank; leading the sewage which is subjected to coagulating sedimentation to flow into a CASS (cyclic activated sludge system) tank, and adding traditional Chinese medicine treatment agents consisting of the following components in parts by mass: 20-30 parts of viola inconspicua, 5-15 parts of liquorice, 10-15 parts of sophora flavescens, and 50-150 parts of aloe, into the CASS tank; leading the sewage treated in the CASS tank to flow through a biofilter tank to obtain the treated water. The method has the advantages that the traditional Chinese medicine treatment agents are added into the CASS tank, and harmful substances cannot be generated in the whole process because the traditional Chinese medicine treatment agents are pure natural substances.
Owner:李建国
High efficiency bio-augmentation treatment method for printing and dyeing wastewater
ActiveCN101456649BReduce dosageReduce poisonTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentSludgeWater quality
The invention discloses a method for high-efficiency biological strengthening treatment of dye printing wastewater and belongs to the field of dye printing wastewater treatment. The method comprises the following steps: the pretreated dye printing wastewater enters an anoxic zone of a high-efficiency A / O pool through a self-flowing mode or a water pump lifting mode; the wastewater enters an aerobic zone through the self-flowing mode; the wastewater treated in the aerobic zone enters a settling zone through the self-flowing mode; and the water treated in the settling zone enters a subsequent treatment unit through the self-flowing or water pump lifting mode or is discharged. The method has good treatment effect to substantially improve the outlet water quality. Moreover, the method has theadvantages of small occupied area, little sludge amount, stable treatment effect, low operating expense and the like. The method realizes effective treatment of the dye printing wastewater and solvesthe prior problems of dye printing wastewater.
Owner:江苏省环境工程技术有限公司
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